The Sony Xperia XZ Premium scores with stereo front speakers and thus challenges HTC because that has been the signature feature of the popular One models. The new HTC U 11 – like already the HTC 10 – uses a different concept with one speaker in the lower edge and another on the front, sort of “semi stereo”. That’s why a lot of you probably wonder how the speakers sound like. Simply listen for yourself in the following Sound-Check video that compares the XZ Premium as well as the U 11 with the famous One M9. Number 4 in this quartet is a surprise. Like always, the clip starts as a blind audition to avoid any bias and to let you guess, what phone hides behind which letter. Enjoy!